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问题 as if...从句前为什么有时加逗号有时不加逗号

1. Why must you do everything as if you have to win？2. He looked tired，as if the argument had taken a lot out of him.请问老师为什么 第二句 as if 前加逗号?

问题 这一句中的close with是什么意思

Jane had sent Caroline an early answer to her letter, and was counting the days till she might reasonably hope to hear again. The promised letter of thanks from Mr. Collins arrived on Tuesday, addressed to their father, and written with all the solemnity of gratitude which a twelvemonth's abode in t...

问题 involved in过去分词做定语的用法

"Get the children," his wife blurted, then dashed to the door to call the older boy. He stared at her a brief moment, seeing the fear in her face, but also a loathing for all men involved in the making and dispatch of nuclear weapons.1. involved in是过去分词做定语吗？意思是被...

问题 at the same time as 如何理解

It is a big mistake to ask her to dinner at the same time as her ex-husband! 这个句子是什么意思？as 后面省略了什么东西吗？

问题 in the first place和at first 的区别

请问 in the first place  的英文解释是？它和at first 的区别是？

问题 时代周刊原句的has是否换成as

In an assessment leaked to the press on Monday, the IMF figured that in 2020, Greece might end up with the same level of debt is has today.参考译文：IMF 周一透露给媒体的一份评估中预测，到2020年希腊的债务水平可能只会降到目前水平。句子出自《时代周刊》...

问题 all you have to do is...表示我所必须要做的事该怎么表达

... wait it out.All I have to do is locate the sack.All I have to do is whistle这里的have to 是那个 ‘必须/不得不‘的词组吗？如果想表示我所必须要做的事是... , 该怎么表达？

问题 enable用法的疑惑

...ng natural language processing, deep learning, and traditional statistical methods】我想问：1. 这里的 enable 应该如何翻译？2. 此处的 using 是现在分词作伴随状语吗？谢谢老师！

问题 those的指代问题

A broad public discussion of environmental problems began in the mid-l980s, when the first green groups formed in opposition to Erevan's intense industrial air pollution and to nuclear power generation in the wake of the 1986 reactor explosion at Chernobyl. Environmental issues helped form the basis...

问题 the key to success is to be ready at beginning.

The key to success is to be ready at beginning.老师，这里为什么用to be ready不能写成 the key to success is ready at beginning吗？

问题 a tough few months与a few tough months

I've had a tough few months, but I'll survive.句中的a tough few months可以是a few tough months吗？二者有什么区别呢？

问题 in front of 和 in the front of 在用法上有什么区别

—Where is he？—He's sitting ________ of the classroom and doing his homework.A.in frontB.in a frontC.in the frontD.on front

问题 动词afford用法问题

...卷经改编后afford这个词还是保留了下来。原文出自于How the elevator transformed America - The Boston GlobeFor most city people, the elevator is an unremarkable machine that inspires none of the enthusiasm or interest that Americans afford trains, jets, and even bicycles. Dr. Christ...

问题 为什么“line to center”中center前面没有定冠词the?

...sp;...Kent will have to play it on three bounces......and Alou will score. The throw goes to the back...Hit the cutoff man, for crying out loud.1.为什么“line to center”中center前面没有定冠词the?line是动词吗？它有及物动词的用法为什么不是line center?And line to center...

问题 剑桥英语语法中will have和would have的疑问

...内容摘自《剑桥英语语法》第203页： [i] If he had stayed in the army he would have become a colonel. [remote] [ii] If he stayed in the army he will have become a colonel.            [open] In [ii] the possible staying in the army and the consequential becoming a colonel ar...